2022MNRAS.516.3342W

Query : 2022MNRAS.516.3342W

2022MNRAS.516.3342W - Mon. Not. R. Astron. Soc., 516, 3342-3353 (2022/November-1)

The giants that were born swiftly - implications of the top-heavy stellar initial mass function on the birth conditions of globular clusters.

WIRTH H., KROUPA P., HAAS J., JERABKOVA T., YAN Z. and SUBR L.

Abstract (from CDS):

Recent results suggest that the initial mass function (IMF) of globular clusters (GCs) is metallicity and density dependent. Here, it is studied how this variation affects the initial masses and the numbers of core-collapse supernovae (CCSNe) required to reproduce the observed iron spreads in GCs. The IMFs of all of the investigated GCs were top-heavy implying larger initial masses compared to previous results computed assuming an invariant canonical IMF. This leads to more CCSNe being required to explain the observed iron abundance spreads. The results imply that the more massive GCs formed at smaller Galactocentric radii, possibly suggesting in situ formation of the population II halo. The time until star formation ended within a proto-GC is computed to be 3.5-4 Myr, being slightly shorter than the 4 Myr obtained using the canonical IMF. Therefore, the impact of the IMF on the time for which IMF lasts is small.

Abstract Copyright: © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): methods: analytical - stars: abundances - supernovae: general - globular clusters: general

Simbad objects: 58

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Number of rows : 58
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NGC 104 GlC 00 24 05.359 -72 04 53.20     4.09     ~ 4158 0
2 NGC 288 GlC 00 52 45.24 -26 34 57.4   10 8.13     ~ 1130 0
3 NGC 362 GlC 01 03 14.26 -70 50 55.6     6.58     ~ 1167 0
4 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
5 NGC 1851 GlC 05 14 06.76 -40 02 47.6           ~ 1529 0
6 M 79 GlC 05 24 10.59 -24 31 27.3     8.16     ~ 883 0
7 NGC 2419 GlC 07 38 08.51 +38 52 54.9     10.05     ~ 998 0
8 NGC 2808 GlC 09 12 03.10 -64 51 48.6           ~ 1540 0
9 NGC 3201 GlC 10 17 36.82 -46 24 44.9           ~ 1001 0
10 M 68 GlC 12 39 27.98 -26 44 38.6     7.96     ~ 1069 0
11 NGC 4833 GlC 12 59 33.92 -70 52 35.4           ~ 467 0
12 M 53 GlC 13 12 55.25 +18 10 05.4     7.79     ~ 907 0
13 NGC 5053 GlC 13 16 27.09 +17 42 00.9     9.96     ~ 675 0
14 NGC 5139 GlC 13 26 47.28 -47 28 46.1           ~ 3677 0
15 M 3 GlC 13 42 11.62 +28 22 38.2     6.39     ~ 2593 0
16 NGC 5286 GlC 13 46 26.81 -51 22 27.3           ~ 485 0
17 NGC 5466 GlC 14 05 27.29 +28 32 04.0     9.70     ~ 887 0
18 NGC 5634 GlC 14 29 37.28 -05 58 35.1   10.69 10.05     ~ 333 0
19 NGC 5694 GlC 14 39 36.52 -26 32 18.0           ~ 323 0
20 NGC 5824 GlC 15 03 58.612 -33 04 06.70   10.28 9.56     ~ 441 0
21 NAME Palomar 5 Stream St* 15 16 05 -00 06.7           ~ 132 0
22 M 5 GlC 15 18 33.22 +02 04 51.7     5.95     ~ 2095 0
23 NGC 5986 GlC 15 46 03.00 -37 47 11.1     6.92     ~ 408 0
24 M 80 GlC 16 17 02.41 -22 58 33.9           ~ 780 0
25 M 4 GlC 16 23 35.22 -26 31 32.7           ~ 1978 0
26 NGC 6139 GlC 16 27 39.987 -38 50 57.03   11.03 9.68     ~ 231 0
27 M 107 GlC 16 32 31.86 -13 03 13.6           ~ 835 0
28 M 13 GlC 16 41 41.634 +36 27 40.75     5.8     ~ 2291 0
29 NGC 6229 GlC 16 46 58.641 +47 31 36.38   9.38 9.86     ~ 397 0
30 M 12 GlC 16 47 14.18 -01 56 54.7     6.07     ~ 736 0
31 M 10 GlC 16 57 09.05 -04 06 01.1     4.98     ~ 857 0
32 M 62 GlC 17 01 12.60 -30 06 44.5           ~ 668 0
33 M 19 GlC 17 02 37.69 -26 16 04.6   8.45 5.57     ~ 406 1
34 M 92 GlC 17 17 07.39 +43 08 09.4     6.52     ~ 2240 0
35 NGC 6366 GlC 17 27 44.24 -05 04 47.5           ~ 344 0
36 NGC 6362 GlC 17 31 54.99 -67 02 54.0           ~ 637 0
37 ESO 455-23 GlC 17 35 47.80 -30 28 11.0           ~ 285 0
38 NGC 6388 GlC 17 36 17.461 -44 44 08.34           ~ 988 1
39 M 14 GlC 17 37 36.15 -03 14 45.3   9.55 5.73     ~ 420 0
40 NGC 6397 GlC 17 40 42.09 -53 40 27.6     5.17     ~ 2103 0
41 Cl Terzan 5 Cl* 17 48 05.00 -24 46 48.0           ~ 948 1
42 NGC 6441 GlC 17 50 13.06 -37 03 05.2           ~ 940 0
43 NGC 6535 GlC 18 03 50.51 -00 17 51.5     9.85     ~ 320 0
44 NGC 6553 GlC 18 09 15.68 -25 54 27.9   9.08       ~ 644 0
45 NGC 6569 GlC 18 13 38.88 -31 49 35.2   10.78 9.47     ~ 276 0
46 M 28 GlC 18 24 32.89 -24 52 11.4           ~ 821 0
47 M 22 GlC 18 36 23.94 -23 54 17.1           ~ 1459 0
48 M 70 GlC 18 43 12.76 -32 17 31.6           ~ 421 0
49 M 54 GlC 18 55 03.33 -30 28 47.5           ~ 1164 0
50 NGC 6752 GlC 19 10 52.11 -59 59 04.4           ~ 2121 0
51 M 55 GlC 19 39 59.71 -30 57 53.1     6.49     ~ 913 0
52 Cl Terzan 8 GlC 19 41 44.41 -33 59 58.1     11.54     ~ 357 0
53 M 71 GlC 19 53 46.49 +18 46 45.1           ~ 1190 0
54 M 75 GlC 20 06 04.841 -21 55 20.14     8.26     ~ 394 0
55 M 15 GlC 21 29 58.33 +12 10 01.2           ~ 3274 0
56 M 2 GlC 21 33 27.02 -00 49 23.7     6.25     ~ 1114 1
57 M 30 GlC 21 40 22.12 -23 10 47.5     7.10     ~ 1121 0
58 NAME GD-1 Stream St* 22 40 +31.           ~ 319 0

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